161346666839 has 2 divisors, whose sum is σ = 161346666840. Its totient is φ = 161346666838.

The previous prime is 161346666823. The next prime is 161346666841. The reversal of 161346666839 is 938666643161.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 161346666839 - 2⁴ = 161346666823 is a prime.

Together with 161346666841, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161346666539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80673333419 + 80673333420.

It is an arithmetic number, because the mean of its divisors is an integer number (80673333420).

Almost surely, 2^161346666839 is an apocalyptic number.

161346666839 is a deficient number, since it is larger than the sum of its proper divisors (1).

161346666839 is an equidigital number, since it uses as much as digits as its factorization.

161346666839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20155392, while the sum is 59.

The spelling of 161346666839 in words is "one hundred sixty-one billion, three hundred forty-six million, six hundred sixty-six thousand, eight hundred thirty-nine".